染雾大学英语六级考试真题 篇一
In recent years, the topic of artificial intelligence (AI) has become increasingly prominent in various fields. With the development of technology, AI has been applied in many aspects of our daily lives, from virtual assistants like Siri and Alexa to self-driving cars and smart home devices. However, the increasing reliance on AI has raised concerns about its potential impact on society.
One of the main concerns about AI is its potential to replace human jobs. As AI technology becomes more advanced, many traditional jobs are at risk of being automated, leading to unemployment for millions of people. This raises questions about how society will handle the transition to a more automated workforce and what measures can be taken to ensure that people are not left behind.
Another concern about AI is the issue of ethics and accountability. As AI systems become more autonomous, there is a growing need to ensure that they are programmed with ethical guidelines and that they are held accountable for their actions. This is particularly important in industries like healthcare and finance, where AI systems can have a significant impact on people's lives.
Despite these concerns, AI also has the potential to bring about many benefits to society. For example, AI can be used to improve healthcare by assisting doctors in diagnosing diseases and developing personalized treatment plans. AI can also be used to enhance education by providing personalized learning experiences for students and helping teachers identify areas where students may need extra help.
In conclusion, while the increasing use of AI raises concerns about its impact on society, it also has the potential to bring about many benefits. It is important for society to carefully consider the ethical implications of AI and to take steps to ensure that its use is responsible and beneficial for all.
大学英语六级考试真题 篇二
The topic of climate change has become a major issue in recent years, as scientists warn that the earth is facing a global crisis due to rising temperatures and extreme weather events. The effects of climate change are already being felt around the world, from melting ice caps and rising sea levels to more frequent and severe droughts and wildfires.
One of the main causes of climate change is the burning of fossil fuels, which releases greenhouse gases like carbon dioxide into the atmosphere. These gases trap heat from the sun, causing the earth's temperature to rise and leading to changes in the climate. In order to combat climate change, it is essential that we reduce our reliance on fossil fuels and transition to cleaner, renewable sources of energy.
Another key factor contributing to climate change is deforestation, which reduces the earth's ability to absorb carbon dioxide and contributes to the loss of biodiversity. By preserving and restoring forests, we can help to reduce the amount of carbon dioxide in the atmosphere and mitigate the effects of climate change.
In addition to these environmental impacts, climate change also has social and economic consequences. For example, rising sea levels and more frequent natural disasters can lead to displacement of communities and loss of livelihoods. In order to address these challenges, it is important for governments, businesses, and individuals to work together to reduce their carbon footprints and take steps to adapt to the changing climate.
In conclusion, climate change is a pressing issue that requires urgent action from all sectors of society. By taking steps to reduce our impact on the environment and mitigate the effects of climate change, we can help to create a more sustainable and resilient future for generations to come.
大学英语六级考试真题 篇三
2012年大学英语六级考试真题
Part Ⅰ Writing (30 minutes)
Directions：For this part, you are allowed 30 minutes to write a composition on the topic The Impact of the Internet on Interpersonal Communication. You should write at least 150 words but no more than 200 words.
The Impact of the Internet on Interpersonal Communication
Part Ⅱ Reading Comprehension (Skimming and Scanning)(15minutes)
Directions: In this part. You will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1. For questions 1-7, choose the best answer from the four choices marked A)、B)、C)and D). For questions 8-10, complete the sentences with the information given in the passage.
The Three-Year Solution
Hartwick College, a small liberal-arts school in upstate New York, makes New York, makes this offer to well prepared students: earn your undergraduate degree in three years instead of four, and save about 543,000—the amount of one year’s tuition and fees. A number of innovative colleges are making the same offer to students anxious about saving time and money. That’s both an opportunity and a warning for the best higher-education system in the world.
The United States has almost all of the world’s best universities. A recent Chinese survey ranks 35 American universities among the top 50, eight among the top 10. Our research universities have been the key to developing the competitive advantages that help Americans produce 25% of all the world’s wealth. In 2007, 623,805 of the world’s brightest students were attracted to American universities.
Yet, there are signs of peril (危险)within American higher education. U.S. colleges have to compete in the marketplace. Students may choose among 6,000 public, private, nonprofit, for profit, or religious institutions of higher learning. In addition, almost all of the 532 billion the federal government provides for university research is awarded competitively.
But many colleges and universities are stuck in the past. For instance, the idea of the fall-to-spring“school year”hasn’t changed much since before the American Revolution, when we were a summer stretch no longer makes sense. Former George Washington University president Stephen Trachtenberg estimates that a typical college uses its facilities for academic purposes a little more than half the calendar year.“While college facilities sit idle, they continue to generate maintenance expenses that contribute to the high cost of running a college,” he has written.
Within academic departments, tenure(终身职位)，combined with age-discrimination laws, makes faculty turnover—critical for a university to remain current in changing times—difficult. Instead of protecting speech and encouraging persity and innovative thinking, the tenure system often stifles(压制)them: younger professors must win the approval of established colleagues for tenure, encouraging like-mindedness and sometimes inhibiting the free flow of ideas.
Meanwhile, tuition has soared, leaving graduating students with unprecedented loan debt. Strong campus presidents to manage these problems are becoming harder to find, and to keep. In fact, students now stay on campus almost as long as their presidents. The average amount of time students now take to complete an undergraduate degree has stretched to six years and seven months as students interrupted by work, inconvenienced by unavailable classes, or lured by one more football season find it hard to graduate.
Congress has tried to help students with college costs through Pell Grants and other forms of tuition support. But some of their fixes have made the problem worse. The stack of congressional regulations governing federal student grants and loans now stands twice as tall as I do. Filling out these forms consumes 7% of every tuition dollar.
For all of these reasons, some colleges like Hartwick are rethinking the old way of doing things and questioning decades-old assumptions about what a college degree means. For instance, why does it have to take four years to earn a diploma? This fall, 16 first-year students and four second-year students at Hartwick enrolled in the school’s new three year degree program. According to the college, the plan is designed for high-ability, highly motivated student who wish to save money or to move along more rapidly toward advanced degrees.
By eliminating that extra year, there year degree students save 25% in costs. Instead of taking 30 credits a year, these students take 40. During January, Hartwick runs a four week course during which students may earn three to four credits on or off campus, including a number of international sites. Summer courses are not required, but a student may enroll in them—and pay extra. Three year students get first crack at course registration. There are no changes in the number of courses professors teach or in their pay.
The three-year degree isn’t a new idea. Geniuses have always breezed through. Judson College, a 350-student institution in Alabama, has offered students a three-year option for 40 years. Students attend “short terms” in May and June to earn the credits required for graduation. Bates College in Maine and Ball State University in Indiana are among other colleges offering three-year options.
Changes at the high-school level are also helping to make it easier for many students to earn their undergraduate degrees in less time. One of five students arrives at college today with Advanced Placement (AP) credits amounting to a semester or more of college level work. Many universities, including large schools like the University of Texas, make it easy for these AP students to graduate faster.
For students who don’t plan to stop with an undergraduate degree, the three-year plan may have an even greater appeal. Dr. John Sergent, head of Vanderbilt University Medical School’s residency (住院医生) program, enrolled in Vanderbilt’s undergraduate college in 1959. He entered medical school after only three years as did four or five of his classmates.” My first year of medical school counted as my senior year, which meant I had to take three to four labs a week to get all my sciences in. I basically skipped my senior year,” says Sergent. He still had time to be a student senator and meet his wife.
There are, however, drawbacks to moving through school at such a brisk pace. For one, it deprives students of the luxury of time to roam (遨游) intellectually. Compressing everything into three years also leaves less time for growing up, engaging in extracurricular activities, and studying abroad. On crowded campuses it could mean fewer opportunities to get into a prized professor’s class. Iowa’s Waldorf College has graduated several hundred students in its three-year degree program, but it now phasing out the option. Most Waldorf students wanted the full four-year experience—academically, socially, and athletically. And faculty members will be wary of any change that threatens the core curriculum in the name of moving students into the workforce.
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Adopting a three-year option will not come easily to most school. Those that wish to tackle tradition and make American campus more cost-conscious may find it easier to take Trachtenberg’s advice: open campuses year-round.“You could run two complete coll
